Selective mounting device for in-line switches

ABSTRACT

The invention provides a mounting for insulator mounted hookoperated in-line air break electric switches whereby the switch can be mounted selectively so that the switch blade swings in a vertical plane or in a plane inclined to the vertical. The mounting comprises a sleeve horizontally mountable on an insulator and having a pair of radial arms-one normal to the axis of the sleeve and the other at an acute angle, preferably about 60* to the axis of the sleeve. The switch supporting clevis which is coplanar with the switch may be secured by a bolt in embracing relation with either of these arms, so that the switch blade will swing in the same plane, vertical or inclined, as the sleeve arm to which the clevis is secured.

United States Patent [72] Inventor John L. Turner East St. Louis, Ill.[2]] Appl. No. 14,617 [22] Filed Feb. 26, 1970 [45] Patented Nov. 16,1971 [73] Assignee Turner Electric Corporation St. Louis, III.

R [54] SELECTIVE MOUNTING DEVICE FOR IN-LINE SWITCHES 9 Claims, 6Drawing Figs. [52] US. Cl 200/48 [51] Int. Cl .H0lh 31/00 [50] Field ofSearch 200/162, 48, 47 [5 6] References Cited UNITED STATES PATENTS3,335,237 8/1967 Kelly 200/48 3,480,747 I l/l969 Lankford ABSTRACT: Theinvention provides a mounting for insulator mounted hook-operatedin-line air break electric switches whereby the switch can be mountedselectively so that the switch blade swings in a vertical plane or in aplane inclined to the vertical. The mounting comprises a sleevehorizontally mountable on an insulator and having a pair of radialarms-one normal to the axis of the sleeve and the other at an acuteangle, preferably about 60 to the axis of the sleeve. The switchsupporting clevis which is coplanar with the switch may be secured by abolt in embracing relation with either of these arms, so that the switchblade will swing in the same plane. vertical or inclined, as the sleevearm to which the clevis is secured.

PATENTEmuv ISIS?! 3.621.160

//vv/v Ton:

JOHN L. TUE/V67? BYWW A TTORNEYS 1. Field of the Invention The inventionrelates to electrical switches, particularly to insulator-mountedin-line hook-operated air break switches,

and mountings therefor.

2. The Prior Art In-line hook-operated switches have commonly beenmounted on insulators by a clevis in such a way that the switch couldonly pivot about a horizontal transverse axis whereby the switch bladeswere swingable only in a vertical plane. While this arrangement wouldstabilize the switch against rotation about its longitudinal axis andthus facilitate opening and closing it, if switches were arranged inphase-over-phase relation, interference might occur if the blades of thetwo upper switches were swung directly downward, in the common verticalplane of all three switches.

SUMMARY OF THE INVENTION The invention provides a horizontal or inclinedpivot axis for the clevis by which an in-line switch is supported from apole-mounted insulator whereby the plane through which the switch bladeswings between closed and open positions may be fixed vertically or atan angle to the vertical.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side elevation view of aswitch provided with a mounting incorporating the invention.

FIG. 2 is a top view of the switch mounting.

FIG. 3 is an isometric view of the selective mounting sleeve.

FIG. 4 is a transverse vertical sectional view through the mountingalong lines 4-4 of FIGS. 1 and 2 showing the switch-vertical position.

FIG. 5 is a transverse vertical sectional view along lines 4- 4 of FIGS.1 and 2 showing the switch-inclined position.

FIG. 6 is an environmental view showing three in-line switches inphase-over-phase relation, mounted on a pole in accordance with theinvention.

DESCRIPTION OF THE PREFERRED EMBODIMENT The letter P refers to a linepole, to which is secured a radially extending horizontal insulator l bymeans of mounting bracket 3.

At its outer end, insulator 1 mounts an axially extending horizontalclevis bracket comprising a circular mounting plate 5 fixed to theinsulator end and a horizontal arm 7 having its outer extremity 9 bentupwardly and perforated at 11 axially of the insulator to form the outerjaw of a clevis, the inner jaw of which is formed by mounting plate 5.Mounting plate 5 is centrally perforated at 13 in axial alignment withperforations I I and is internally threaded to receive a bolt 15, whichpasses through clevis outer jaw 9.

A sleeve 17 is secured within clevis 5, 7, 9 by bolt 15 which passesthrough the sleeve. In order to accomplish the objectives of theinvention, i.e., selective angular positioning of an in-line switch,indicated generally at 19, sleeve 17 is formed intermediate its endswith a pair of platelike arms 21 and 23 spaced apart longitudinally ofthe sleeve and extending radially in the same direction from sleeve 17.The general plane of arm 21 is perpendicular to the sleeve axis, and thegeneral plane of arm 23 makes an angle preferably in the order of 60with the sleeve axis.

Each of arms 21 and 23 is formed with a hole 25 in its outer endportions to receive a bolt 27 for securing switch mounting clevis bar29.

Clevis bar 29 is a flat elongated bar slotted intermediate its ends at31 to receive sleeve arm 21 or 23 depending on the desired position ofswitch 19. At one end bar 29 is formed with a hole 34 for attachment ofa strain clamp 35 or the like, and at its other end is bifurcated toform clevis jaws 36 formed with aligned holes 37 to receive a pin 39 forsecuring switch 19 to bar 29.

Switch 19 comprises a strain insulator 41, to the ends of which arerigidly secured short flat aligned bars 43 and 45 terminatingrespectively in eyes 47 and 49. Eye 47 is received between clevis jaws35 of bar 29, and is secured therein by pin 39.

Aligned vertically oriented plates SI and 53 are formed along theirupper margins with flanges 55 and 57 secured by I bolts 59 to eyebars 43and 45 respectively, and a switch blade, comprising parallel flat bars61, is pivotally connected by pin 63 to terminal plate 53 to swing aboutan axis transverse of plate 53, i.e., in the same plane as plate 53. Atits other end, blade 6H, 61 is adapted to embrace the lower end ofterminal plate 51 which forms the fixed contact of the switch, the bladebeing held in closed position by a latch 67 pivotally mounted betweenblade elements 61. The outer or contact end of blade 61, 61 also mountsa loop 69 for receiving the operating hook (not shown) by which theswitch blade is swung between the closed horizontal position asillustrated to an open position in which the blade may be vertical.

Eye 45 on the left end of the switch is connected by clevis bar 71 to astrain clamp 73, which is clamped at 75 to the line L,, thus supportingswitch 19 in alignment with the latter. Line L, is also clamped at 77 tothe top flange of terminal plate 53.

On the right-hand side of the switch, as viewed in FIGS. 1 and 2, line Lis secured by clamp 77 to the top flange of ter minal plate 51, and, bymeans of strain clamp 35, to the righthand end of clevis bar 29.

As described above, clevis bar 29 is mounted on vertical arm 21 ofmounting sleeve 17, as shown in FIG. 4, in which it will be seen thatblade 61 is swingable vertically from closed position to the open, shownin broken lines.

To permit the switches to be mounted in phase-over-phase relation, asshown schematically in FIG. 6, without interference between theoperating hook and the lower lines during operation of blades 61, or theupper lines, clevis bar 29 may be mounted on inclined am 23 of sleeve17, as shown in FIG. 5, on the topmost line, and, if desired, sleeve 17may be secured on the middle line. On the bottom line, clevis bar 29can, if desired, be mounted on vertical arm 21 so as to provide vertical movement of switch blade 61.

It will be evident that with the mounting sleeve 17 several arrangementsof the parts may be effected to avoid interfering vertical swingingmovement of the upper switch blades 61.

The invention may be modified in various respects as will occur to thoseskilled in the art and the exclusive use of all modifications as comewithin the scope of the appended claims is contemplated.

I claim:

1. The combination of a power line stationary support, a bracketthereon, an in-line air break electric switch of the type having anelongated blade pivoted about a transverse axis, and transverse axismeans on said switch for connecting said switch to said support with amounting device positioned transversely of said switch, comprising anelongated element formed with a pair of platelike arms radial withrespect to the axis of said element and spaced apart axially thereof,the general plane of one of said arms being perpendicular to the axis ofsaid element and the general plane of the other of said arms beinginclined with respect to the axis of said element, said elongatedelement being secured to said bracket against rotation in its axialplane, said arms being respectively selectively securable to saidtransverse axis means with the axis of the latter normal to the generalplane of the arm.

2. The combination according to claim 1 in which said elongated elementis a cylindrical sleeve.

3. The combination according to claim 1 wherein said stationary supportincludes a pole and an insulator mounted on said pole.

4. The combination according to claim 3 wherein said bracket has spacedjaws defining a clevis carried on the end of said insulator remote fromthe pole, said elongated element being positioned between said jaws.

5. The combination according to claim 4 wherein said elongated elementis axially apertured, and an elongated securing element passes throughsaid jaws and the aperture of said element to secure said element withinsaid clevis.

6. The combination according to claim ll including means for selectivelysecuring an in-line switch to one of said arms with the major axis ofthe switch normal to the axis of said elongated member whereby theswitch blade is swingable in a vertical plane or an inclined plane.

7. The combination according to claim 1 wherein said pivotal connectoris a flat elongated bar secured to one of said received within saidslot.

9. The combination according to claim 7 wherein said fastening meanscomprises a clevis and a mating eye on the switch.

* a t '4! t

1. The combination of a power line stationary support, a bracketthereon, an in-line air break electric switch of the type having anelongated blade pivoted about a transverse axis, and transverse axismeans on said switch for connecting said switch to said support with amounting device positioned transversely of said switch, comprising anelongated element formed with a pair of platelike arms radial withrespect to the axis of said element and spaced apart axially thereof,the general plane of one of said arms being perpendicular to the axis ofsaid element and the general plane of the other of said arms beinginclined with respect to the axis of said element, said elongatedelement being secured to said bracket against rotation in its axialplane, said arms being respectively selectively securable to saidtransverse axis means with the axis of the latter normal to the generalplane of the arm.
 2. The combination according to claim 1 in which saidelongated element is a cylindrical sleeve.
 3. The combination accordingto claim 1 wherein said stationary support includes a pole and aninsulator mounted on said pole.
 4. The combination according to claim 3wherein said bracket has spaced jaws defining a clevis carried on theend of said insulator remote from the pole, said elongated element beingpositioned between said jaws.
 5. The combination according to claim 4wherein said elongated element is axially apertured, and an elongatedsecuring element passes through said jaws and the aperture of saidelement to secure said element within said clevis.
 6. The combinationaccording to claim 1 including means for selectively securing an in-lineswitch to one of said arms with the major axis of the switch normal tothe axis of said elongated member whereby the switch blade is swingablein a vertical plane or an inclined plane.
 7. The combination accordingto claim 1 wherein said pivotal connector is a flat elongated barsecured to one of said arms with one of its faces parallel to theselected arm and having means at one end for fastening it to the in-lineswitch against relative movement about the axis thereof.
 8. Thecombination according to claim 7 wherein said elongated bar is formedwith an elongated slot intermediate its ends, the selected arm of saidelongated element being received within said slot.
 9. The combinationaccording to claim 7 wherein said fastening means comprises a clevis anda mating eye on the switch.